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This is the free Material Data Center Datasheet of VANDAR® 2500 - PBT - Celanese

Material Data Center offers the following functions for VANDAR® 2500:
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加工/物理特性 - 机械性能 - 热性能 - 其它性能
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加工/物理特性价值单位Test Standard
ISO数据
模塑收缩率, 平行 1.9 % ISO 294-4, 2577
模塑收缩率, 垂直 1.9 % ISO 294-4, 2577
机械性能价值单位Test Standard
ISO数据
拉伸模量 1450 MPa ISO 527
屈服应力 35 MPa ISO 527
屈服伸长率 5 % ISO 527
名义断裂伸长率 >50 % ISO 527
无缺口简支梁冲击强度, +23°C 203 kJ/m² ISO 179/1eU
简支梁冲击强度, -30°C 168 kJ/m² ISO 179/1eU
简支梁缺口冲击强度, +23°C 88 kJ/m² ISO 179/1eA
简支梁缺口冲击强度, -30°C 9 kJ/m² ISO 179/1eA
热性能价值单位Test Standard
ISO数据
熔融温度, 10°C/min 225 °C ISO 11357-1/-3
玻璃化转变温度, 10°C/min 70 °C ISO 11357-1/-2
热变形温度, 1.80 MPa 50 °C ISO 75-1/-2
热变形温度, 0.45 MPa 125 °C ISO 75-1/-2
线性热膨胀系数, 平行 130 E-6/K ISO 11359-1/-2
线性热膨胀系数, 垂直 134 E-6/K ISO 11359-1/-2
其它性能价值单位Test Standard
吸水性 0.45 % 类似ISO 62
密度 1250 kg/m³ ISO 1183
典型数据
加工方法
注塑
供货形式
粒料
添加剂
润滑剂
地区供应
北美, 欧洲, 亚太, 中南美洲, 中东/非洲
其他信息
注塑成型
To avoid hydrolytic degradation during processing, Vandar resins have to be dried to a moisture level equal to or less than 0.02%. Drying should be done in a dehumidifying hopper dryer capable of dewpoints <-30°F (-34°C) at 250°F (121°C) for 4 hours.
Rear Temperature 450-480(230-250) deg F (deg C)
Center Temperature 460-490(235-255) deg F (deg C)
Front Temperature 470-500(240-260) deg F (deg C)
Nozzle Temperature 470-510(240-265) deg F (deg C)
Melt Temperature 470-510(240-265) deg F (deg C)
Mold Temperature 100-200(40-95 deg F (deg C)
Back Pressure 0-50 psi
Screw Speed Moderate
Injection Speed Fast

Injection speed, injection pressure and holding pressure have to be optimized to the individual article geometry. To avoid material degradation during processing low back pressure and minimum screw speed have to be used. Overheating of the material has to be avoided, in particular for flame retardant grades. Up to 25% clean and dry regrind may be used.
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Copyright Altair Engineering GmbH. Altair Engineering GmbH assumes no liability for the system to be free of errors. The user takes sole responsibility for the use of this data under the exclusion of every liability from Altair Engineering GmbH; this is especially valid for claims of compensation resulting from consequential damages. Altair explicitly points out that any decision about the application of materials must be double checked with the producer of this material. This includes all contents of this system. Copyright laws are applicable for the content of this system.
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